Product Description

 

Product Description

This gearbox is designed for plastic extrusion machine. It  meet JB/T9040-1999 standard.  The gear is made of high-strength alloy steel and hardened by carburizing and quenching. The accuracy of grinding teeth is higher than Level 6 and the hardness is HRC 54-62. In the front of output shaft,we assemble a thrust bearing with  high safety factor to bear the extrusion pressure of screw.

Detailed Photos

 

Loading capacity sheet of CHINAMFG and ZSYJ reduction gearboxes
Type ZLYJ ZSYJ
Spec     * * * * * * * * * * * *
112 133 146 173 200 225 250 280 315 330 375 395 420 450 500 560 630 450 560 530
-8 -8 -10 -12.5 -12.5 -16 -16 -16 -16 -16 -16 -16 -16 -12 -20 -20 -20 -32 -57 -44
                                         
Normal input power(kw) n=1500rpm
Ordinary reliable 15 22 30.8 39 55 75 82.5 116 171 _ 260 300 315 332 450 600 825 240 240 370
High reliable 10 15 18.3 30.8 45 60 67 75 116 207 207 240 250 266 350 550 675 200 220 315
                                         
  Allowable output torque(N.m)
Ordinary reliable 800 1165 1962 2484 4379 6568 7643 11822 17427 _ 26497 3571 32102 38599 5571 76433 105095 48917 87134 103694
High reliable 525 764 1165 1962 3583 5334 6306 7643 11822 21000 21096 24380 25478 33885 44566 70063 85978 40764 79873 88280

Recommended parameters of single-screw extruder machine reduction gearbox(Optional)
Type Spec. Power/Kw Speed-Input Speed-Output Load torque/N.m Axial force/KN Screw diameter Length-Diameter Ratio
ZLYJ 112-8 5.5 800 100 525 35 less than 35 25:1
113-8 6 800 100 764 39 50 25:1
146-10 11 1000 100 1050 54 55 25:1
173-10 18.5 900 90 1962 110 65 25:1
200-12.5 30 1000 80 3581 155 75 25:1
225-12.5 45 1000 80 5371 180 90 25:1
250-16 55 1120 70 7503 192 105 25:1
280-16 75 960 60 7643 258 110 25:1
315-16 85 960 60 13528 287 120 25:1
330-16 110 960 60 17528 360 135 25:1
375-16 132 960 60 21008 390 150 25:1
395-16 185 960 60 29442 400 160 25:1
420-16 160/220 960 60 31831 430 160/170
450-20 213 1000 60 40640 500 180 25:1
500-20 220 1000 50 42571 550 180 25:1
560-17 440 1000 50 84034 700 200 25:1
630-10 540 1000 50 15712 770 250 25:1
ZSYJ 450-32 200 1500 47 4 0571 500 165 25:1
560-57 220 1500 26 80802 700 190 25:1

Company Profile

Zhe jiang yifan gear box group CO., LTD was set up in 1970. It specializes in developing and producing small and medium-sized marine gearboxes, plastic extruder slowdown bins, Z4 DC motors,generators and so on.There are mainly 300 moreproduction equipments,including more than60 big,fine and expensive ones. The area of our company is 110, 000 square meters.There are 350 staff,and 25%of the total number are the middle and senior technical members. Since the venture,we commit toresearching and developing new products,and keeping improving the technology. We pay great attention to the after-salesservice. All of these efforts increase the developing footsteps of our company. We have strong technical strength , sophisticatedprocessing equipments,advanced products detection equipments,and own a complete security system including productsdesigned,mechanical processing,unit assembly,testing before coming out from the factory and after-sales service. Ourproducts have passed the ISO9001 Quality System Certification.

 

Certifications

 

 

Our Advantages

1: High transmission efficiency
2: Smooth operation and low noise
3: Small size and high carrying capacity.
4: Easy to disassemble and easy to install.

FAQ

Q: Are you trading company or manufacturer?
A: We are factory.
 

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock.
 

Q: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.

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Application: Machinery
Function: Speed Reduction
Layout: Coaxial
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Double-Step
Samples:
US$ 500/Piece
1 Piece(Min.Order)

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Request Sample

worm gearbox

Is it Possible to Reverse the Direction of a Worm Gearbox?

Yes, it is possible to reverse the direction of a worm gearbox by changing the orientation of either the input or output shaft. However, reversing the direction of a worm gearbox can have some implications that need to be considered:

  • Efficiency: Reversing the direction of a worm gearbox can potentially affect its efficiency. Worm gearboxes are typically more efficient in one direction of rotation due to the design of the worm and worm wheel.
  • Backlash: Reversing the direction of rotation might lead to increased backlash or play in the gearbox, which can impact precision and smooth operation.
  • Lubrication: Depending on the gearbox’s design, reversing the direction could affect lubrication distribution and lead to uneven wear on the gear teeth.
  • Load: Reversing the direction might also impact the gearbox’s load-carrying capacity, especially if it’s designed for predominantly one-way operation.
  • Noise and Vibration: Direction reversal can sometimes result in increased noise and vibration due to changes in gear engagement and meshing behavior.

If you need to reverse the direction of a worm gearbox, it’s advisable to consult the gearbox manufacturer’s guidelines and recommendations. They can provide insights into whether the specific gearbox model is suitable for reversible operation and any precautions or adjustments needed to ensure proper functioning.

worm gearbox

Worm Gearbox vs. Helical Gearbox: A Comparison

Worm gearboxes and helical gearboxes are two popular types of gear systems, each with its own set of advantages and disadvantages. Let’s compare them:

Aspect Worm Gearbox Helical Gearbox
Efficiency Lower efficiency due to sliding friction between the worm and worm wheel. Higher efficiency due to rolling contact between helical gear teeth.
Torque Transmission Excellent torque transmission and high reduction ratios achievable in a single stage. Good torque transmission, but may require multiple stages for high reduction ratios.
Noise and Vibration Generally higher noise and vibration levels due to sliding action. Lower noise and vibration levels due to smoother rolling contact.
Backlash Higher inherent backlash due to the design. Lower backlash due to meshing of helical teeth.
Efficiency at Higher Speeds Less suitable for high-speed applications due to efficiency loss. More suitable for high-speed applications due to higher efficiency.
Overload Protection Natural self-locking feature provides some overload protection. May not have the same level of inherent overload protection.
Applications Commonly used for applications requiring high reduction ratios, such as conveyor systems and heavy-duty machinery. Widely used in various applications including automotive transmissions, industrial machinery, and more.

Both worm and helical gearboxes have their place in engineering, and the choice between them depends on the specific requirements of the application. Worm gearboxes are preferred for applications with high reduction ratios, while helical gearboxes are chosen for their higher efficiency and smoother operation.

worm gearbox

Advantages of Using a Worm Reducer in Mechanical Systems

Worm reducers offer several advantages that make them suitable for various mechanical systems:

  • High Gear Reduction Ratio: Worm gearboxes provide significant speed reduction, making them ideal for applications that require a high gear reduction ratio without the need for multiple gears.
  • Compact Design: Worm reducers have a compact and space-saving design, allowing them to be used in applications with limited space.
  • Self-Locking: Worm gearboxes exhibit self-locking properties, which means that the worm screw can prevent the worm wheel from reversing its motion. This is beneficial for applications where the gearbox needs to hold a load in place without external braking mechanisms.
  • Smooth and Quiet Operation: Worm gearboxes operate with a sliding motion between the teeth, resulting in smoother and quieter operation compared to some other types of gearboxes.
  • High Torque Transmission: Worm gearboxes can transmit high torque levels, making them suitable for applications that require powerful torque output.
  • Heat Dissipation: The sliding action between the worm screw and the worm wheel contributes to heat dissipation, which can be advantageous in applications that generate heat during operation.
  • Stable Performance: Worm reducers offer stable and reliable performance, making them suitable for continuous operation in various industrial and mechanical systems.

Despite these advantages, it’s important to note that worm gearboxes also have limitations, such as lower efficiency compared to other gear types due to the sliding motion and potential for higher heat generation. Therefore, selecting the appropriate type of gearbox depends on the specific requirements and constraints of the application.

China Professional High Torque CZPT Vertical Anisotropic Single Screw Extruder Gearbox   sequential gearbox	China Professional High Torque CZPT Vertical Anisotropic Single Screw Extruder Gearbox   sequential gearbox
editor by CX 2024-03-11